Ross-Tech is not responsible for any
damage or problems that may result from following these instructions. They
are to be used at your own risk. As always, you should refer to a
Factory Repair Manual for your vehicle!
This procedure applies
only to older Xenon systems that use KW-1281. Procedures for specific
vehicles, including newer cars that use KWP-2000 or CAN systems can be
found in the Ross-Tech
This procedure details how to
perform a Xenon Headlamp Adjustment on many VW/Audi vehicles equipped with
Xenons (HID's). This
procedure cycles the motorized headlamp adjusters to their center position
so that the beams can be adjusted. This does NOT align the headlamps by
itself. You still need to manually adjust the headlamps via the adjusting
screws as referenced against a suitable aiming target.
If this procedure is only
partially performed, there may be a DTC stored in the Xenon Range memory
indicating "Headlights not adjusted". To clear this, you need to complete
the entire procedure.
There are certain test conditions
that must be met before doing this procedure:
Vehicle must be parked on level
ground and "settled" on its suspension
Parking brake should be OFF
Ignition should be in the "On"
Headlamps should be "Off"
Procedure for Aligning Xenon
[55 - Xenon Range] (For
some newer vehicles, use [29 -
Left Light] instead )
[Basic Settings - 04]
Wait at least 20 seconds for the headlamp motors to
move. The headlamps are now in their adjustment position. Turn on
headlights. Adjust them via their manual adjusting screws as referenced
against a suitable aiming target.
Scroll up to Group 002. The Xenon Range controller has now
learned this position as its Home position.
Click the [Done, Go Back]
button and you're all set.
Note: There have been reports of lowered vehicles
displaying an error message in either Basic Settings group 001 or 002. If
the vehicle height sensor(s) are bottomed out, it may be necessary to bend
the sensor bracket to allow normal adjustment to occur. Also, check to
make sure that the sensor arms do not have their pivots facing the wrong
direction as shown in this thread: